How it works
How to use this gpa calculator
- Enter each course name, letter grade, and credit value.
- Use the standard 4.0 scale shown in the grade list.
- Read the semester GPA, credits, and quality points.
Formula
The calculation formula
GPA = Total Grade Points ÷ Total CreditsConvert each letter grade to grade points.
Multiply grade points by course credits.
Divide total quality points by total credits.
Worked examples
Example calculations
An A in a 3-credit course contributes 12 quality points; a B+ in a 4-credit course contributes 13.2 quality points.
Courses with missing or zero credits do not change total quality points or GPA.
When to use it
Common use cases
- Estimate a semester GPA
- Test different grade scenarios
- Understand the effect of course credits
Limits
Assumptions and limits
- Uses an unweighted 4.0 college scale: A=4.0 through F=0. No Honors or AP bonus.
- A+ is not a separate value in this version.
- Courses with credits less than or equal to zero are skipped.
Questions
Frequently asked questions
Does this calculator include weighted AP or honors grades?
No. This page is college unweighted 4.0 only. Use the High School GPA Calculator for Regular, Honors, AP, and IB weights, or Cumulative GPA to merge terms you already averaged.
Why do credits matter?
A course with more credits contributes more to the overall GPA than a course with fewer credits.
Sources
Sources and review
- College Board — how to convert your GPA
Standard unweighted 4.0 letter-grade conversion
Accessed July 27, 2026